Specifications: E27 universal designed spiral lamp head, which is commonly used in home. No flash and radiation, with full spectrum for different environments. UVA ultraviolet light to stimulate reptiles appetite. Low energy consumption and environmental protection. It can keep your pet warm living environment in winter. 25W power is suitable for turtles jar with a length less than 50cm 50W power is suitable for turtles jar with a length less than 80cm. 75W power is suitable for turtles jar with a length less than 100cm. Item Name: Infrared Heat Emitter Bulb Optional Power: 25W, 50W, 75W Voltage Range: 220V (220-240V) Bulb Head: E27 Features: Energy Saving, Durable, Warming Light, Pet Accessories Size: 5cm x 5cm/1.97" x 1.97" (Approx.) Note: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Infrared Heat Emitter Bulb (Other Accessories Not Included) E27 universal designed spiral lamp head, which is commonly used in home. No flash and radiation, with full spectrum for different environments. UVA ultraviolet light to stimulate reptiles appetite. Low energy consumption and environmental protection. It can keep your pet warm living environment in winter.